At the time of this report (2011) there were eight proven in operation SMR designs with a perspective of international deployment. These designs include the pressure tube heavy water reactors developed in Canada (CANDU-6, EC6) and India (PHWR-220, 540, 700) and the PWRs developed in China (QP-300 and CNP-600). All of these SMRs are land-based. A stand-alone input in this category is the first-of-a-kind (FOAK) barge-mounted plant with the two PWR-type KLT-40S reactors which is currently under construction in the Russian Federation. The plant is expected to start operation in 2013. The KLT-40S design is based on a 6 500 reactor-year experience in the design and operation of the marine propulsion reactors in the Russian federation.

The CANDU-6 and the QP-300 have been deployed internationally, and there are agreements to build more of these reactors in Romania and Pakistan, respectively. Other proven in operation SMRs are being considered for international deployment.

All deployments of the CANDU-6 since 1996, as well as all deployments of the PHWR-220 since 2000, are reported to have been accomplished on schedule (or even ahead of it) and without exceeding the budget.

In the Slovak Republic, a decision has been made to finalise the construction project of the two older design VVER-440 reactors by 2012-2013. The construction project originally started in 1985 but was stopped in 1991. No plans exist for any additional build of the reactors of this dated type.